EP0213864A3 - Balun circuits - Google Patents

Balun circuits Download PDF

Info

Publication number
EP0213864A3
EP0213864A3 EP86306357A EP86306357A EP0213864A3 EP 0213864 A3 EP0213864 A3 EP 0213864A3 EP 86306357 A EP86306357 A EP 86306357A EP 86306357 A EP86306357 A EP 86306357A EP 0213864 A3 EP0213864 A3 EP 0213864A3
Authority
EP
European Patent Office
Prior art keywords
gap
strips
strip
equal
metallic strips
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP86306357A
Other languages
German (de)
French (fr)
Other versions
EP0213864A2 (en
Inventor
Christopher Hunter Oxley
Anthony James Holden
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plessey Overseas Ltd
Original Assignee
Plessey Overseas Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Plessey Overseas Ltd filed Critical Plessey Overseas Ltd
Publication of EP0213864A2 publication Critical patent/EP0213864A2/en
Publication of EP0213864A3 publication Critical patent/EP0213864A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
    • H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced lines or devices with unbalanced lines or devices

Landscapes

  • Waveguides (AREA)
  • Telephone Function (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Toys (AREA)
  • Networks Using Active Elements (AREA)
  • Microwave Amplifiers (AREA)

Abstract

A Balun circuit for an integrated circuit having a small area and constructed using known semi-conductor fabrication processes. The balun circuit comprises two metallic strips (3,5) on a dielectric substrate (1) the strips (3,5) being substantially parallel to one another with a gap (7) there between and the second strip (5) having a length (21) to be equal to a quarter wavelength of the input signal, the values of the gap and strip widths (13,19) being predetermined such that the output impedances of the first and second metallic strips (3,5) respectively are substantially equal.
EP86306357A 1985-08-31 1986-08-18 Balun circuits Withdrawn EP0213864A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8521727 1985-08-31
GB858521727A GB8521727D0 (en) 1985-08-31 1985-08-31 Balun circuits

Publications (2)

Publication Number Publication Date
EP0213864A2 EP0213864A2 (en) 1987-03-11
EP0213864A3 true EP0213864A3 (en) 1988-09-07

Family

ID=10584574

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86306357A Withdrawn EP0213864A3 (en) 1985-08-31 1986-08-18 Balun circuits

Country Status (3)

Country Link
EP (1) EP0213864A3 (en)
JP (1) JPS6271304A (en)
GB (2) GB8521727D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2652451A1 (en) * 1989-09-26 1991-03-29 Trt Telecom Radio Electr Balanced HYPERFREQUENCY MIXER WITH "BALUN" CIRCUIT.
DE4321411C1 (en) * 1993-06-26 1994-11-10 Ant Nachrichtentech Balancing circuit
US5565881A (en) * 1994-03-11 1996-10-15 Motorola, Inc. Balun apparatus including impedance transformer having transformation length
JP2669405B2 (en) * 1995-07-27 1997-10-27 日本電気株式会社 Balun transformer
FI103614B (en) * 1997-03-20 1999-07-30 Nokia Mobile Phones Ltd Phasing and balancing means

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721912A (en) * 1971-04-19 1973-03-20 Sperry Rand Corp Short time electromagnetic wave signal sampling system
US3848198A (en) * 1972-12-14 1974-11-12 Rca Corp Microwave transmission line and devices using multiple coplanar conductors
US3991390A (en) * 1975-07-31 1976-11-09 Motorola, Inc. Series connected stripline balun
EP0146086A2 (en) * 1983-12-09 1985-06-26 Polska Akademia Nauk Centrum Badan Kosmicznych Microwave balun for mixers and modulators

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3798575A (en) * 1972-12-14 1974-03-19 Rca Corp Microwave transmission line and devices using multiple coplanar conductors
US3965445A (en) * 1975-02-03 1976-06-22 Motorola, Inc. Microstrip or stripline coupled-transmission-line impedance transformer
US4275364A (en) * 1979-09-24 1981-06-23 The United States Of America As Represented By The Secretary Of The Navy Resonant element transformer
US4465985A (en) * 1982-03-02 1984-08-14 The United States Of America As Represented By The Secretary Of The Air Force Hardwire missile receiver coupler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721912A (en) * 1971-04-19 1973-03-20 Sperry Rand Corp Short time electromagnetic wave signal sampling system
US3848198A (en) * 1972-12-14 1974-11-12 Rca Corp Microwave transmission line and devices using multiple coplanar conductors
US3991390A (en) * 1975-07-31 1976-11-09 Motorola, Inc. Series connected stripline balun
EP0146086A2 (en) * 1983-12-09 1985-06-26 Polska Akademia Nauk Centrum Badan Kosmicznych Microwave balun for mixers and modulators

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
14TH EUROPEAN MICROWAVE CONFERENCE, Liège, 10th - 13th September 1984, pages 166-171, Microwave Exhibitions and Publishers Ltd, Tunbridge Wells, Kent, GB; W. MARCZEWSKI et al.: "The overlapped microstrip for MICs and MMICs" *

Also Published As

Publication number Publication date
GB2179801A (en) 1987-03-11
JPS6271304A (en) 1987-04-02
GB8620014D0 (en) 1986-09-24
GB8521727D0 (en) 1985-10-02
EP0213864A2 (en) 1987-03-11

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Inventor name: HOLDEN, ANTHONY JAMES

Inventor name: OXLEY, CHRISTOPHER HUNTER